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GET /api/patches/42473/?format=api
{ "id": 42473, "url": "http://patches.dpdk.org/api/patches/42473/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20180706070722.2043-12-maxime.coquelin@redhat.com/", "project": { "id": 1, "url": "http://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20180706070722.2043-12-maxime.coquelin@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20180706070722.2043-12-maxime.coquelin@redhat.com", "date": "2018-07-06T07:07:18", "name": "[v9,11/15] vhost: add vector filling support for packed ring", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "82cf02d909f3a338b5341b8f393585a82d22dff7", "submitter": { "id": 512, "url": "http://patches.dpdk.org/api/people/512/?format=api", "name": "Maxime Coquelin", "email": "maxime.coquelin@redhat.com" }, "delegate": { "id": 2642, "url": "http://patches.dpdk.org/api/users/2642/?format=api", "username": "mcoquelin", "first_name": "Maxime", "last_name": "Coquelin", "email": "maxime.coquelin@redhat.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20180706070722.2043-12-maxime.coquelin@redhat.com/mbox/", "series": [ { "id": 450, "url": "http://patches.dpdk.org/api/series/450/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=450", "date": "2018-07-06T07:07:07", "name": "Vhost: add support to packed ring layout", "version": 9, "mbox": "http://patches.dpdk.org/series/450/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/42473/comments/", "check": "fail", "checks": "http://patches.dpdk.org/api/patches/42473/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 9E91E1BFF1;\n\tFri, 6 Jul 2018 09:07:50 +0200 (CEST)", "from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73])\n\tby dpdk.org (Postfix) with ESMTP id 324E31BFEF\n\tfor <dev@dpdk.org>; Fri, 6 Jul 2018 09:07:49 +0200 (CEST)", "from smtp.corp.redhat.com\n\t(int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id C7BBD4022414;\n\tFri, 6 Jul 2018 07:07:48 +0000 (UTC)", "from localhost.localdomain (unknown [10.36.112.10])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 0E98E2026D68;\n\tFri, 6 Jul 2018 07:07:46 +0000 (UTC)" ], "From": "Maxime Coquelin <maxime.coquelin@redhat.com>", "To": "tiwei.bie@intel.com, zhihong.wang@intel.com, jfreimann@redhat.com,\n\tdev@dpdk.org", "Cc": "mst@redhat.com, jasowang@redhat.com, wexu@redhat.com,\n\tMaxime Coquelin <maxime.coquelin@redhat.com>", "Date": "Fri, 6 Jul 2018 09:07:18 +0200", "Message-Id": "<20180706070722.2043-12-maxime.coquelin@redhat.com>", "In-Reply-To": "<20180706070722.2043-1-maxime.coquelin@redhat.com>", "References": "<20180706070722.2043-1-maxime.coquelin@redhat.com>", "X-Scanned-By": "MIMEDefang 2.78 on 10.11.54.4", "X-Greylist": [ "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.11.55.6]); Fri, 06 Jul 2018 07:07:48 +0000 (UTC)", "inspected by milter-greylist-4.5.16 (mx1.redhat.com\n\t[10.11.55.6]); \n\tFri, 06 Jul 2018 07:07:48 +0000 (UTC) for IP:'10.11.54.4'\n\tDOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com'\n\tHELO:'smtp.corp.redhat.com' FROM:'maxime.coquelin@redhat.com' RCPT:''" ], "Subject": "[dpdk-dev] [PATCH v9 11/15] vhost: add vector filling support for\n\tpacked ring", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>\n---\n lib/librte_vhost/virtio_net.c | 111 ++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 111 insertions(+)", "diff": "diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c\nindex 058786871..9171ee733 100644\n--- a/lib/librte_vhost/virtio_net.c\n+++ b/lib/librte_vhost/virtio_net.c\n@@ -450,6 +450,117 @@ reserve_avail_buf_split(struct virtio_net *dev, struct vhost_virtqueue *vq,\n \treturn 0;\n }\n \n+static __rte_always_inline int\n+fill_vec_buf_packed_indirect(struct virtio_net *dev,\n+\t\t\tstruct vhost_virtqueue *vq,\n+\t\t\tstruct vring_packed_desc *desc, uint16_t *vec_idx,\n+\t\t\tstruct buf_vector *buf_vec, uint16_t *len, uint8_t perm)\n+{\n+\tuint16_t i;\n+\tuint32_t nr_descs;\n+\tuint16_t vec_id = *vec_idx;\n+\tuint64_t dlen;\n+\tstruct vring_packed_desc *descs, *idescs = NULL;\n+\n+\tdlen = desc->len;\n+\tdescs = (struct vring_packed_desc *)(uintptr_t)\n+\t\tvhost_iova_to_vva(dev, vq, desc->addr, &dlen, VHOST_ACCESS_RO);\n+\tif (unlikely(!descs))\n+\t\treturn -1;\n+\n+\tif (unlikely(dlen < desc->len)) {\n+\t\t/*\n+\t\t * The indirect desc table is not contiguous\n+\t\t * in process VA space, we have to copy it.\n+\t\t */\n+\t\tidescs = alloc_copy_ind_table(dev, vq, desc->addr, desc->len);\n+\t\tif (unlikely(!idescs))\n+\t\t\treturn -1;\n+\n+\t\tdescs = idescs;\n+\t}\n+\n+\tnr_descs = desc->len / sizeof(struct vring_packed_desc);\n+\tif (unlikely(nr_descs >= vq->size)) {\n+\t\tfree_ind_table(idescs);\n+\t\treturn -1;\n+\t}\n+\n+\tfor (i = 0; i < nr_descs; i++) {\n+\t\tif (unlikely(vec_id >= BUF_VECTOR_MAX)) {\n+\t\t\tfree_ind_table(idescs);\n+\t\t\treturn -1;\n+\t\t}\n+\n+\t\t*len += descs[i].len;\n+\t\tif (unlikely(map_one_desc(dev, vq, buf_vec, &vec_id,\n+\t\t\t\t\t\tdescs[i].addr, descs[i].len,\n+\t\t\t\t\t\tperm)))\n+\t\t\treturn -1;\n+\t}\n+\t*vec_idx = vec_id;\n+\n+\tif (unlikely(!!idescs))\n+\t\tfree_ind_table(idescs);\n+\n+\treturn 0;\n+}\n+\n+static __rte_unused __rte_always_inline int\n+fill_vec_buf_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,\n+\t\t\t\tuint16_t avail_idx, uint16_t *desc_count,\n+\t\t\t\tstruct buf_vector *buf_vec, uint16_t *vec_idx,\n+\t\t\t\tuint16_t *buf_id, uint16_t *len, uint8_t perm)\n+{\n+\tbool wrap_counter = vq->avail_wrap_counter;\n+\tstruct vring_packed_desc *descs = vq->desc_packed;\n+\tuint16_t vec_id = *vec_idx;\n+\n+\tif (avail_idx < vq->last_avail_idx)\n+\t\twrap_counter ^= 1;\n+\n+\tif (unlikely(!desc_is_avail(&descs[avail_idx], wrap_counter)))\n+\t\treturn -1;\n+\n+\t*desc_count = 0;\n+\n+\twhile (1) {\n+\t\tif (unlikely(vec_id >= BUF_VECTOR_MAX))\n+\t\t\treturn -1;\n+\n+\t\t*desc_count += 1;\n+\t\t*buf_id = descs[avail_idx].id;\n+\n+\t\tif (descs[avail_idx].flags & VRING_DESC_F_INDIRECT) {\n+\t\t\tif (unlikely(fill_vec_buf_packed_indirect(dev, vq,\n+\t\t\t\t\t\t\t&descs[avail_idx],\n+\t\t\t\t\t\t\t&vec_id, buf_vec,\n+\t\t\t\t\t\t\tlen, perm) < 0))\n+\t\t\t\treturn -1;\n+\t\t} else {\n+\t\t\t*len += descs[avail_idx].len;\n+\n+\t\t\tif (unlikely(map_one_desc(dev, vq, buf_vec, &vec_id,\n+\t\t\t\t\t\t\tdescs[avail_idx].addr,\n+\t\t\t\t\t\t\tdescs[avail_idx].len,\n+\t\t\t\t\t\t\tperm)))\n+\t\t\t\treturn -1;\n+\t\t}\n+\n+\t\tif ((descs[avail_idx].flags & VRING_DESC_F_NEXT) == 0)\n+\t\t\tbreak;\n+\n+\t\tif (++avail_idx >= vq->size) {\n+\t\t\tavail_idx -= vq->size;\n+\t\t\twrap_counter ^= 1;\n+\t\t}\n+\t}\n+\n+\t*vec_idx = vec_id;\n+\n+\treturn 0;\n+}\n+\n static __rte_always_inline int\n copy_mbuf_to_desc(struct virtio_net *dev, struct vhost_virtqueue *vq,\n \t\t\t struct rte_mbuf *m, struct buf_vector *buf_vec,\n", "prefixes": [ "v9", "11/15" ] }